Hi,

After upgrading to org 9.2, I found that C-c ' (org-edit-special) does not work on an INCLUDE statement if it has :only-contents t. 

That is, I can normally visit the subtree with CUSTOM_ID theory in paper.org if I press C-c ' on the following:

    #+INCLUDE: "./paper.org::#theory"

but pressing C-c ' on the following gives me this error: "org-open-file: No match for custom ID: theory" :only-contents t"

    #+INCLUDE: "./paper.org::#theory" :only-contents t

Looks like parsing the statement was not working -- it seems it is capturing stuff after ".

Best Regards,

Joon